Disable printf debug output

Mbed OS
2

Hello Mike,

You can:

  • Either use debug rather than printf to print debugging messages. For more info read
    https://forums.mbed.com/t/printf-vs-debug

  • Or disable the STDIO printf functionality by overriding the console as below:

...

FileHandle *mbed::mbed_override_console(int)
{
    mbed_file_handle(STDOUT_FILENO)->enable_output(false);
    return mbed_file_handle(STDOUT_FILENO);
}

int main()
{
    printf("Hello\r\n");  //Won't be printed
    ...
  • Or minimize it by defining the MBED_MINIMAL_PRINTF macro in the mbed_app.json file:
{
    "macros": ["MBED_MINIMAL_PRINTF"]
}

Best regards,

Zoltan